621.319 Bee 12 <a id="rdfa" resource="" property="dc:creator" href="http://viaf.org/viaf/162943872" target="_new">Beeman , Donald</a> ed . Industrial power systems handbook. lst.ed. Habana , Edicion Revolucionaria , 1966. xviii, 971 p . ilus ., graficos , tablas . 23 cm